Gas-compressor



J. N. HDJISKY.

GAS COMPRESSOR.

APPLICATION FILED IUNE23. 1919.

Patented Aug. 9, 1921.

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. BJ @M4 UNITED STATES JOSEPH N. minzrsnir7 or DETROIT, MICHTGAN.

Application filed .Tune 23,

. To all 107mm t may concern:

Be it known that I, JosnrH N. HADJISKY, a subject of the King of Bulgaria, residing atDetroit, in the county of l/Vayne and State oit' lvlichigan, have invented certain new and useiul improvements lin Gras-Compressors, oit' which the following is a specification, reference being had therein to the accompanying drawings.

rThe invention relates to gas compressors oi that type in which compressive force is applied to the gas or vapor to be compressed hydraulically. lt is theobject of the invention to obtain a simple and eiiicient apparatus and one in which clearances are reduced .to the minimum so as to be capable of attaining high compression Further advantages of my improved construction are absence of forcibly wearing partsand higher volumetric eliciency. Y.

Generally described, my improvement consists in a chambered casing having valvecontrolled gas inlet and outlet connections, together with hydraulic. means for alternately filling and emptying the chamber with a liquid. Preferably there are provided two such chambers which are alternately filled and emptied, the'liquid being pumped out from one and into the other and there is further preferably provided reversing vmeans automatically operated upon thecoml ypletion of the displacementv ofthev compressed gas. y v v In the drawings Ihave'` omitted the hy-k draulic pump, which may be of anyV suit- 'ablec'onstructioin and have illustrated the gas compression apparatus and` controlling mechanism. y

Figure l is a sectional plan view;

Fig. 2 is a sectional side elevation;

Fig. 3 is a transversesection substantially on line 3 8 of Fig. 2. Y Y

ln detail, improved apparatus comprises a casing 7 which is divided by a partition 7 into two compartmentsk A and B. ln thelower portion of the casing 7 is a liquid-controlling valve 26, preferably of the,l rotary'oscillator 4type and'which controls passages E, F, (il and D. The passage E isV connected with thej suction conduit '23 of the liquid pump (not shown), and the passage F' is connected with the discharge end 27 ofsaid pump. The passage Crcommunicates with the chamber A and the passage D with the 'chamber B. The construction land" arrangement of the valve' is such that one of Specification of Letters Patent.

Patented Aug. 9, 1921.

1919. Serial No. 305,971.

the chambers A and B is connected by the passage E with the discharge end of the pump, while the other of saidchambers is simultaneously connected by t-he passage F with'the suction conduit of the pump, so that the liquid is drawn out from thel one chamber and forced into the other. Also, by movement of the valve the connections are `reversed and thus the liquid may be alternately transferred from one chamber to the other.

At the upper end of the casing each of the chambers A and B is yprovided with a gas inlet conduit 1 and gas outlet conduit 2, controlled respectively by the automatic valves 22 and 19. Adjacent to the outlet valve 19 Y is a cylinder containing a hollow piston 4 with a loat arranged in the chamber therewithin. The endof the piston isprovided with a series of ports 2O which are normally open, but are sealed upon the rise of the ioat 5 Vinto contact with the head of the piston. The piston 4 is connected by a rod vSwith an operating mechanism for rotating the valve 26, this comprising a rack bar 10 mesh with the gear 13 on the valve 26. The arrangement is such that when the piston 4 inone of the chambers, A and B, is moved upward, it will lift the rack l0 and rotatably actuate the valve 26 so fas to reverse the connections of the liquid i pump lto the chambers. f

n ln operation, assuming the parts in the position shown in'Fig. 2, the chamber B is connected by the valve 26 with the discharge conduit 27 of the li uid pump (not shown), while the chamber is connected with the suction conduit 23 of said pump. Alsol assuming that the chamber A is iilled with liquid-and the chamber B is filled with gas, it will ybe Vevident vthat upon the opera tion ofV the pump liquid willV be' withdrawn rom'th'e chamber A and forced intothe chamber. B. m*This fwill produce a vacuum passage of gas in through the conduit 1 and past-the automatic vvalve 2,2. Also the pressure oi'sthe liquid. entering the chamber fB .will compress `the gas therein' until it attains a pressure which overcomes the resist-i At the completion of the filling of the cham-4 in the Chamber A which is finality the ber B with liquid the float 5 will be raised against the ports 2O in the piston 4 and upon the scaling of said ports the pressure of the liquid against the float and piston will littl the latter. This will communicate motion through the rod 8 to the rack 10 operating the pinions 13 and 14 and reversing the valve 26, so that the chamber B will be connected with the suction of the liquid pump and the chamber A with the discharge end of said pump. The liquid will then bewithdrawn from the chamber B, creating a vacuum which draws in a new supply of gas through the inlet 1, while in the chamber A the pressure of the liquid will compress the gas finally expelling it from the chamber, as just described. This cycle will be repeated as long as the pump is in operation.

Some of the advantages of my improved construction are; first, it eliminates many of the moving parts so common to the re` ciprocating type of compressor; second, it reduces much cost by using very few highly finished parts; third, the operation is silent; fourth, the liquid seal prevents leakage unavoidable with a mechanical piston; fifth, there are no parts to wear; and sixth, lubrication is automatic.

Vhat l claim as my invention is:

1. A gas compressor comprising a casing provided with a pair of compartments each having a gas inlet and a gas outlet, and with a liquid outlet and a liquid inlet common to both compartments, means in each compartment adapted to automatically seal the gas outlet thereof when liquid reaches a predetermined height in the compartment, and a single liquid controlling member operatively connected to each gas outlet sealing means and adapted to throw a compartment into communication with the liquid outlet when the gas outlet thereof is sealed, and to simultaneously connect the other compartment with the liquid inlet.

2. A gas compressor comprising a pair of compartments each having a gas inlet and a gas outlet, and with a liquid intake and a liquid outlet which are common to both compartments, liquid controlling means adapted to throw the compartments alternately into communication with the liquid inlet and. outletrespectively and float controHed means at each gas outlet adapted to seal the latter when the companion compartment is liquid y filled and connected to the liquid controlling means and arranged to operate the latter te throw the same compartments into communication with said outlet and to connect the other compartment with the liquid filled in-' 1 let. i

3. A gas compressor comprising a casing provided with a pair of compartments each having a gas inlet controlled by an automatic outwardly seating valve and a gas out let controlled by an automatic inwardly seating valve and with a liquid intake'and a liquid outlet each common to both compartments, a liquid controlling valve adapted to throw the compartments alternately into communication with the liquid inlet and outlet respectively, a float controlled valve for ea'cli gas outlet adapted to seal the latter when the companion compartment is liquid-filled and connected to the liquid controlling valve whereby the latter is shifted to throwl the said compartment into communication with the liquid outlet and to connect the othercompartment with the liquid inlet. t

4. A gas compressor comprising a casing with a pair of compartments each with a gas inlet provided with an automatic check valve and a gas outlet provided with an automatic check valve, and with a liquid intake and a liquid outlet each common to both compartments, a liquid controlling valve adapted l to throw the chambers alternately into communication with the liquid inlet and outlet respectively, a float controlled valve for each gas outlet adapted to seal the latter when the companion compartment is liquid filled, andv mechanism connecting each floatv controlled valve with the liquid cont-rolling valve and moving the latter to threw the companion compartment into communication with the Vliquid outlet whenv the lioat controlled valve seals the gas outlet.

5. A gas compressor comprising a casing provided with a pair of compartments each having a gas inlet controlled 4by an automatic outwardly seating valve and a gas outlet controlled by an automatic inwardly seating valve, and with a liquid intake and a liquid outlet each common to both compartments, a liquid controlling valve adapted to throw the "chambers alternately into communication with the liquid inlet and liquid outlet respectively, a piston valve for each gas outlet adapted to seal the latter when at the upper end of its throw, a float in the piston closure of said valve for throwing the latter into closed position when they companion compartment is liquid filled, and

means connecting the piston valve and liquid Y controlling valve and operating the latter to throw the said compartment into communication with the liquid outlet when the piston `provided with a pair of compartmentseach having a check valved gas inlet and a check valved gas outlet, and with a liquid inlet and liquid outlet each common'to both compartments, a rotata le liquid controlling `valve journaled in the casing and adapted to throw the compartments alternately into communication` with the liquid inlet Y and liquid outlety respectively and a float controlled valve for eachv gas outlet adapted4 to seal the latter `when the companion compartment is liquid filled and connected to the liquid controlling valve to shift the latter whereby the outlet of the casing is placed in communication with the companion compartment when the gas outlet float is closed.

7. A gas compressor comprising a casing provided with a pair of compartments each having a check valved gas inlet and a check valVed gas outlet and with a liquid intake and a liquid outlet each common to both compartments, a rotatable liquid controlling valve journaled in the casing and adapted to throw the compartments alternatively into communication with the liquid inlet and liquid outlet respectively, a iioat controlled valve for each gas outlet adapted to seal the latter when the companion compartment is liquid iilled and rack and pinionconnections tively, a valve for each gas outlet consisting n of a cylinder having a discharge opening through the head 1n communication with the gas outlet and a piston closure reciprocable in thecylinder provided with ports inthe head thereof adapted to be sealed when the closure contacts with the cylinder head, and a float in the piston adapted to move the latter to closed position when the companion comt partment is liquid lilled, and means connecting the piston and the liquid controlling valve and so moving the latter when the piston closure is seated that the companion compartment is in communication with the liquid outlet of the casing. p

9. A gas compressor comprising a casing provided with a pair of compartments each having a gas inlet controlled by an automatic outwardly seating valve, and a gas outlet, a valve Jfor each gas outlet-consisting of a` cylinder mounted in the casing and ported through the head orcommunication with the gas outlet, an nwardlyseating check valve in the cylinder head,.a piston closure in the cylinder provided with ports through the head thereof adapted to be sealed against the` cylinder head, a float in the piston adapted to move the latter to closed position when the companion compartment isfliquidilled, a rack reciprocated by the piston, a pinion operated by the rack and a liquid controlling valve journaled in the casing and rotated by the pinion to throw the companionV compartment into communiycationnkwith the liquid outlet when the piston closure is seated.

In testimony whereof I aiiix my'signature.

JOSEPH N. HADJisKY. 

